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3. Detectors
When the EKG recording is nished by using the device, the Phone app provides instant analysis
of the recorded EKG to evaluate whether the heart rhythm is normal or if possible atrial brillation
is detected. The result is displayed as Possible Atrial Fibrillation (or AFib), Bradycardia, Tachycardia,
Normal, Unreadable or Unclassied.
NOTE:
Your EKG must be at least 30 seconds long to use the Atrial Fibrillation, Bradycardia, Tachycardia and
Normal detectors. If an EKG is recorded that is less than 30 seconds, neither the Atrial Fibrillation,
nor the Bradycardia, nor the Tachycardia and not the Normal detector will display a result.
Atrial Fibrillation Detector
The Atrial Fibrillation detector detects possible atrial brillation in an EKG tracing. After you take an
EKG, if possible atrial brillation is detected you will be notied as ”Possible Atrial Fibrillation (or AFib)”
within the app. This nding is not a diagnosis; it is only a potential nding for the recorded EKG. You
should contact your physician to review any EKG recording in which possible atrial brillation was
detected. If you are experiencing any symptoms or concerns, contact a medical professional.
Bradycardia Detector
Bradycardia detector detects bradycardia, in an EKG tracing.
After you record an EKG, if bradycardia is detected you will be notied as Bradycardia within the app.
Bradycardia means a type of arrhythmia due to slower heart rate (40-50 beats per minute).
The app analyzes EKGs to detect normal sinus rhythm without major abnormalities between 40-50
beats per minute.
Tachycardia Detector
Tachycardia detector detects tachycardia, in an EKG tracing.
After you record an EKG, if tachycardia is detected you will be notied as Tachycardia within the app.
Tachycardia means a type of arrhythmia due to faster heart rate (100-140 beats per minute).
The app detects normal sinus rhythm without major abnormalities at these heart rates.
Normal Detector
The Normal detector noties you as “Normal” when a recording is normal. This means that the heart
rate is between 50 and 100 beats per minute, there are no or very few abnormal beats, and the shape,
timing and duration of each beat is considered normal sinus rhythm. It is important to remember that
there is a wide range of normal variability among dierent individuals. Changes in the shape or timing
of an EKG might be normal for a single individual, but since the apps are used by a large and diverse
population, the Normal detector has been designed to be conservative with what it detects as normal.
If you have been diagnosed with a condition that aects the shape of your EKG (e.g., intraventricular
conduction delay, left or right bundle branch block, Wol-Parkinson-White Syndrome, etc.), experience
a large number of premature ventricular or atrial contractions (PVC and PAC), are experiencing an
arrhythmia, or took a poor-quality recording it is unlikely that you will be notied that your EKG is normal.
It is also important to note that the Normal detector looks at the entire signal before determining if
it can be declared to be normal. If you experience a small number of PACs or PVCs in a recording of
otherwise normal beats in normal rhythm, the Normal detector will likely declare that EKG recording
to be normal. The Normal detector will not declare an EKG outside the heart rate of 50-100 beats per
minute as normal, even if the EKG has normal sinus rhythm. As a result, if you typically get “Normal”
results but take an EKG immediately after any physical activity that raises your heart rate above 100
beats per minute, you may not get a “Normal” result.